The phrase "alignment annulus" is correct and usable in written English.
It can be used in contexts related to engineering, optics, or any field where alignment and circular structures are discussed.
Example: "The technician adjusted the alignment annulus to ensure the laser beam was perfectly centered."
Alternatives: "alignment ring" or "alignment circle".
For the tissue Doppler assessment of E', the apical four-chamber orientation was utilised and a 2 mm sample volume was positioned at both the septal and lateral wall aspect of the mitral valve annulus ensuring the best alignment between wall motion and the ultrasound beam.
Advantages of the transapical approach compared to a transfemoral approach include more reliable coaxial alignment of the transcatheter valve with the aortic annulus and greater ability to control delivery of the valve [33].
Some researches focus on the organization of collagen fibers into planes of alternating alignment and found that it played an important role in annulus fibrosus tissue function.
A novel design of silk-based scaffold is developed using a custom-made winding machine, with fiber alignment resembling the anatomical criss-cross lamellar fibrous orientation features of the annulus fibrosus of the intervertebral disc.
If excessive, these calcifications may prevent appropriate alignment of the prosthesis, leading to gaps between the prosthetic valve and the aortic annulus and subsequent paravalvular aortic regurgitation (leak), as well as increased risk of annular rupture, device dislodgement or obstruction of coronary ostia due to opposition of calcified aortic cusp [34, 38, 39, 40, 41, 42] (Fig. 16).
Structural weakness of the annulus fibrosus may also lead to the inability of the disc to maintain anatomical alignment and position progressing to instability and/or spondylolisthesis.
Annulus brown, indistinct.
Annulus whitish to yellowish.
Note annulus and stomium cells.
